package com.smartstate.EnvironmentMonitor.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * <p>@Description: No Description</p>
 * <p>@Author 陈永杰</p>
 * <p>@Date: 2022/8/22</p>
 * <p>@Time: 20:50</p>
 * <p>@version 1.0 <p>
 */
@Component
public class SpringContextUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    /**
     * 实现ApplicationContextAware接口的回调方法，设置上下文环境
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext){
        SpringContextUtil.applicationContext = applicationContext;
    }

    /**
     * 获得spring上下文
     * @return ApplicationContext spring上下文
     */
    public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }

    /**
     * 获取bean
     * @param name service注解方式name为小驼峰格式
     * @return  Object bean的实例对象
     */
    public static Object getBean(String name) throws BeansException {
        return applicationContext.getBean(name);
    }
}
